F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
F24C 15/00 (2006.01) G01V 3/11 (2006.01) H02H 5/00 (2006.01) H03K 17/945 (2006.01) H05B 3/74 (2006.01)
Patent
CA 2325094
A device for sensing the presence of cooking utensils on a cooking hob comprising at least one heat source, said device comprising an electrically conductive coil turn fed by the signal generated by an oscillator, in which the oscillator (VCO) is a voltage-controlled oscillator generating square wave signals, said coil turn (7) for sensing the utensil acting, when said sensing occurs, to modify the cut-off frequency of a low pass filter (L/R) fed by said oscillator (VCO) (Figure 4).
La présente concerne un dispositif de détection de la présence d'ustensiles de cuisine sur une plaque de cuisson comprenant au moins une source de chaleur, ledit dispositif comprenant une bobine conductrice alimentée par le signal généré par un oscillateur, dans lequel l'oscillateur (VCO) est un oscillateur commandé par tension qui génère des signaux d'ondes carrées, ladite bobine (7) de détection de l'ustensile agissant, lorsque ladite détection se produit, pour modifier la fréquence de coupure d'un filtre passe-bas (L/R) alimenté par ledit oscillateur (VCO) (figure 4).
Brindani Franco
Frasnetti Luca
Corporation Whirlpool
Ridout & Maybee Llp
LandOfFree
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